An investigation is underway after flames tore through a Sanford warehouse late Thursday night.The fire broke out about 10:30 p.m. off South Sanford Avenue and prompted a response from Seminole County, Sanford and Lake Mary fire crews.Firefighters used a big ladder and extension trucks to get to the heart of the building and knock down the fast-moving blaze.>>Download the WESH 2 News app for iOS and AndroidThe building is the Cardinal Industries Plant, which has been closed for years. The company built manufactured homes before it filed for bankruptcy in 1989.Fire officials said nobody was inside when the fire broke out and no firefighters were injured.The state fire marshal will investigate the cause of the blaze.

SANFORD, Fla. —

An investigation is underway after flames tore through a Sanford warehouse late Thursday night.

The fire broke out about 10:30 p.m. off South Sanford Avenue and prompted a response from Seminole County, Sanford and Lake Mary fire crews.

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Firefighters used a big ladder and extension trucks to get to the heart of the building and knock down the fast-moving blaze.